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2016 Recommended Modifications to the West Elk Mine Hydrologic Monitoring Network 9 <br />Figure 4. Water Quality in Spring G -26a <br />1.200 --- <br />E 1.000 <br />3 <br />� eoo <br />600 <br />0 <br />U <br />400 <br />u <br />u <br />W 200 <br />0 <br />tf <br />Spring G -26a <br />9.0 <br />m <br />80 <br />V <br />7.5 <br />a <br />v 7.0 <br />d <br />LL <br />6.5 <br />6.0 <br />g <br />-a-pH Date <br />Spring G -26a <br />600 <br />J <br />700 <br />E <br />600 <br />- <br />B <br />----_.— <br />500 <br />-- <br />v <br />> <br />400 <br />0 <br />y <br />300 <br />A <br />0 200 <br />100 <br />0 <br />t t t t r r <br />�Tr1R Date <br />60 <br />_ 70 <br />ra <br />E 60 <br />50 <br />O <br />N <br />� 40 <br />a <br />C <br />30 <br />N <br />co 20 <br />m <br />s 10 <br />0 <br />6 <br />Spring G -26a <br />t t r <br />tTSS Date <br />Spring G -26a <br />4.5 -- ---- <br />4 —-- <br />4 <br />35 <br />J 3 <br />m <br />E 25 <br />c <br />0 2 <br />O <br />15 <br />r <br />1 <br />0.5 <br />0 <br />t t t t a r i <br />--*-Tot. Iron Date <br />Note: No baseline data (WWE, 2001); insufficient flows for baseline measurements and sampling (MCC, 2016) <br />Not Detected (ND) values graphed as zero. <br />August 2016 HydroGeo, Inc. <br />